Repipe Estimate Template: Phases, Allowances and Changes

Define the project boundary before the price

List the areas and systems included in the proposed work. Do not let “whole-house repipe” stand in for a scope that the estimator, technician, and customer could interpret differently.

State which quantities and conditions were verified and which remain provisional. The right technical specification depends on professional assessment and applicable requirements. This guide organizes the estimate; it does not select materials, design a system, or describe installation methods.

For larger projects, separate the work by location or phase. That makes it easier to explain customer access, inspection dependencies, and the sequence of other trades without promising dates you have not confirmed.

Use this project estimate framework

REPIPE PROJECT ESTIMATE
Project / estimate / revision: [references]
Property and approving party: [details]
Assessment basis: [visit date, inspected areas, supplied documents]
Included areas and system boundaries: [explicit list]
Excluded areas: [explicit list]
Proposed specification: [professionally assessed details]
Verified quantities: [basis and units]
Allowances / unverified quantities: [basis and review point]

Phase | Included result | Price basis | Dependency
[phase] | [defined work] | [fixed/allowance/other] | [condition]

Access openings: [responsible party and boundary]
Surface restoration: [included/excluded scope]
Customer access / occupancy arrangements: [agreed plan]
Permit / inspection coordination: [responsible party]
Other-trade coordination: [named responsibility]
Proposed milestones: [subject to confirmed dependencies]
Payment milestones: [agreed terms; separately reviewed]
Change authorization process: [contact, document, approval]
Total / applicable tax: [verified amounts]
Approval of selected revision: [name, date, method]

Make allowances visible

An allowance should identify the uncertain item, the amount included, and how the final amount will be confirmed. Avoid using a general contingency as permission to charge for anything that changes.

For a fictional estimate, suppose assessed work totals $7,600 and a clearly identified allowance is $400. The displayed pre-tax estimate is $8,000. If the allowance later needs to become $650, show the $250 change and obtain the authorization required by the agreement. These figures are illustrative only.

The customer should be able to distinguish a changed allowance from an added scope item. Those are different explanations and should not be hidden in a single revised total.

Separate access from restoration

Who opens a surface and who restores it may be different parties. Identify each responsibility and the boundary of the included finish. A statement such as “patching included” can still leave uncertainty about painting, tile matching, or other finish work.

Do not promise a completion date that depends on another party without identifying that dependency. Give the office a way to mark the next step as blocked by access, materials, inspection coordination, or another trade.

Use milestones to manage the handoffs

A milestone should have observable completion criteria. “Phase complete” needs a definition that the office can check before sending the next invoice or arranging the next visit.

Keep changes attached to the original agreement

Do not overwrite the original approved estimate with the final scope. Preserve the original, each authorized change, and the resulting total. That history helps explain why the final invoice differs from the initial proposal.

Before closeout, reconcile project phases, recorded payments, unresolved items, and the final bill. A useful repipe estimate becomes the reference for that reconciliation rather than a document forgotten once work starts.